someone you love or would like to have a romantic relationship with

The message on the card said "Be my Valentine!" 卡片上写着“做我的爱人吧”。

a decorative card that you send, sometimes without your name on it, on 14 February (Valentine's Day) to someone you love

Did you get any valentines? 你收到情人卡了吗？

I left a valentine card in her locker. 我在她更衣室衣柜里放了张情人卡。